SAPH440 EquivalentJIS G3113 Structural Automobile Hot Rolled And Cold Rolled SAPH440 Steel Sheet and Plate
SAPH440 steel is structural hot-rolled steel in the form of plates, sheets & strips for automobile structural applications. SAPH440 is a material grade and designation defined in JIS G 3113 standard. JIS G 3113 is a Japanese material standard for Hot-Rolled steel plates, sheets, strips for automobile structural usage. The structural quality hot rolled SAPH440 steel is more reliable in its tensile strength than SAPH400 steel. It can be used in automotive applications where more strength is needed & the material does not fail under exceeding loading.
Symbol | Chemical composition | |
P max | S max | |
SAPH310,SAPH370,SAPH400,SAPH440 | 0.040 | 0.040 |
Symbol | Elongation (rolling direction)% | Bendability | ||||||||
NO.5 test piece | No.1A test piece | |||||||||
≥1.6 <2mm | ≥2.0 <2.5mm | ≥2.5 <3.15mm | ≥3.15 <4.0mm | ≥4.0 <6.3mm | ≥6.3mm | Bending angle | Inside Radius | Test piece | ||
<2.0mm | ≥2.0 mm | |||||||||
SAPH310 | 33 | 34 | 36 | 38 | 40 | 26 | 180° | Flat on itself | Thickness x 1.0 | No.3 transversely to rolling direction |
SAPH370 | 32 | 33 | 35 | 36 | 37 | 25 | 180° | -Thickness x 0.5 | Thickness x 1.0 | |
SAPH400 | 31 | 32 | 34 | 35 | 36 | 24 | 180° | Thickness x 1.0 | -Thickness x 1.0 | |
SAPH440 | 29 | 30 | 32 | 33 | 34 | 22 | 180° | Thickness x 1.0 | Thickness x 1.5 |
Symbol | Tensile strength N/mm2 min | Yield point N/mm2 | ||
<6 | ≥6 <8mm | ≥8 <14mm | ||
SAPH310 | 310 | 195 | 195 | 175 |
SAPH370 | 370 | 225 | 225 | 215 |
SAPH400 | 400 | 255 | 235 | 235 |
SAPH440 | 440 | 305 | 295 | 275 |
The applicable thickness for this SAPH440 material as defined in the JIS 3113 starts from 2 mm to 14 mm. However, the width of SAPH440 material ranges to 950 to 2000 mm.
JIS G 3113 defines the chemical composition of SAPH440 steels as under:
Remaining is iron (Fe) percentage and with few negligible impurities.